Attendance/Class Information - Pinnacle High School - Casa Grande enrolls students year-round for grades 9-12 with new classes starting every two weeks. Pinnacle High School - Casa Grande will provide all necessary course materials including access to online course(s), electronic text books, and course required resources, with the exception of general school materials including such things as pens, pencils, paper, and other obtainable household items. Pinnacle High School - Casa Grande will also provide student services, transcript verification services, and a Pinnacle High School - Casa Grande diploma, upon successful completion of necessary graduation requirements. Pinnacle High School - Casa Grande does not provide a computer or internet access; those items are the responsibility of the student. Students must complete course work in a prescribed time frame to earn credit.